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#!/bin/sh
# Anticonf (tm) script by Jeroen Ooms (2015)
# This script will query 'pkg-config' for the required cflags and ldflags.
# If pkg-config is unavailable or does not find the library, try setting
# INCLUDE_DIR and LIB_DIR manually via e.g:
# R CMD INSTALL --configure-vars='INCLUDE_DIR=/.../include LIB_DIR=/.../lib'
# Library settings
PKG_CONFIG_NAME="libxml-2.0"
PKG_DEB_NAME="libxml2-dev"
PKG_RPM_NAME="libxml2-devel"
PKG_CSW_NAME="libxml2_dev"
PKG_TEST_HEADER="<libxml/tree.h>"
PKG_LIBS="-lxml2"
# Note that cflags may be empty in case of success
if [ "$INCLUDE_DIR" ] || [ "$LIB_DIR" ]; then
echo "Found INCLUDE_DIR and/or LIB_DIR!"
PKG_CFLAGS="-I$INCLUDE_DIR $PKG_CFLAGS"
PKG_LIBS="-L$LIB_DIR $PKG_LIBS"
else
# Use xml2-config if available
xml2-config --version >/dev/null 2>&1
if [ $? -eq 0 ]; then
PKGCONFIG_CFLAGS=`xml2-config --cflags`
PKGCONFIG_LIBS=`xml2-config --libs`
# MacOS versions El Capitan and later ship a xml2-config which appends `xcrun
# --show-sdk-path` to the xml2-config. So we remove it if it is present.
# (https://stat.ethz.ch/pipermail/r-sig-mac/2016-September/012046.html)
if echo $OSTYPE | grep -q '^darwin1[567]'; then
PKGCONFIG_CFLAGS=`echo $PKGCONFIG_CFLAGS | perl -pe "s{\Q\`xcrun -show-sdk-path\`\E}{}"`
PKGCONFIG_LIBS=`echo $PKGCONFIG_LIBS | perl -pe "s{\Q\`xcrun -show-sdk-path\`\E}{}"`
fi
else
pkg-config --version >/dev/null 2>&1
if [ $? -eq 0 ]; then
PKGCONFIG_CFLAGS=`pkg-config --cflags $PKG_CONFIG_NAME`
PKGCONFIG_LIBS=`pkg-config --libs $PKG_CONFIG_NAME`
fi
fi
if [ "$PKGCONFIG_CFLAGS" ] || [ "$PKGCONFIG_LIBS" ]; then
echo "Found pkg-config cflags and libs!"
PKG_CFLAGS=${PKGCONFIG_CFLAGS}
PKG_LIBS=${PKGCONFIG_LIBS}
fi
fi
# Find compiler
CC=`${R_HOME}/bin/R CMD config CC`
CFLAGS=`${R_HOME}/bin/R CMD config CFLAGS`
CPPFLAGS=`${R_HOME}/bin/R CMD config CPPFLAGS`
# For debugging
echo "Using PKG_CFLAGS=$PKG_CFLAGS"
echo "Using PKG_LIBS=$PKG_LIBS"
# Test configuration
echo "#include $PKG_TEST_HEADER" | ${CC} ${CPPFLAGS} ${PKG_CFLAGS} ${CFLAGS} -E -xc - >/dev/null 2>&1 || R_CONFIG_ERROR=1;
# Customize the error
if [ $R_CONFIG_ERROR ]; then
echo "------------------------- ANTICONF ERROR ---------------------------"
echo "Configuration failed because $PKG_CONFIG_NAME was not found. Try installing:"
echo " * deb: $PKG_DEB_NAME (Debian, Ubuntu, etc)"
echo " * rpm: $PKG_RPM_NAME (Fedora, CentOS, RHEL)"
echo " * csw: $PKG_CSW_NAME (Solaris)"
echo "If $PKG_CONFIG_NAME is already installed, check that 'pkg-config' is in your"
echo "PATH and PKG_CONFIG_PATH contains a $PKG_CONFIG_NAME.pc file. If pkg-config"
echo "is unavailable you can set INCLUDE_DIR and LIB_DIR manually via:"
echo "R CMD INSTALL --configure-vars='INCLUDE_DIR=... LIB_DIR=...'"
echo "--------------------------------------------------------------------"
exit 1;
fi
# Write to Makevars
sed -e "s|@cflags@|$PKG_CFLAGS|" -e "s|@libs@|$PKG_LIBS|" src/Makevars.in > src/Makevars
# Success
exit 0